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    "## 第二次练习\n",
    "\n",
    "+ 请**务必**交到**exer2**文件夹下，谢绝交到master下\n",
    "+ 请**不要改动**任何文件，拜托\n",
    "+ 请在10月16日前提交。"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "### 食物和热量\n",
    "\n",
    "已知，以下食物每100g的千卡路里如下：\n",
    "\n",
    "小米粥 45  \n",
    "粗粮馒头 223  \n",
    "全麦面包 235  \n",
    "瘦猪肉 143  \n",
    "鸡翅 194  \n",
    "培根 181  \n",
    "火腿肠 212 \n",
    "\n",
    "建立一个空的字典，把上述键值对依此添加进去。 \n",
    "通过循环形式，显示，如“我吃了二两”+“小米粥”，“增加了”+“45”千卡路里。"
   ]
  },
  {
   "cell_type": "code",
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   "source": [
    "food_calorie = {'小米粥':'45',\n",
    "               '粗粮馒头':'223',\n",
    "               '全麦面包':'235',\n",
    "               '瘦猪肉':'143',\n",
    "               '鸡翅':'194',\n",
    "               '培根':'181',\n",
    "               '火腿肠':'212',\n",
    "               }\n",
    "for food, calorie in food_calorie.items ():\n",
    "     print(\"我吃了二两%s,增加了%s千卡路里\"%(food,calorie))"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "### 运动和消耗\n",
    "常见三种运动的消耗热量表：  \n",
    "慢走 (一小时4公里) 255 卡  \n",
    "慢跑 (一小时9公里) 655 卡  \n",
    "羽毛球（一小时） 440 卡  \n",
    "\n",
    "模仿课件3-dict_set中的cell[9]做个刷题，直到答对而且答完为止。"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
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   "outputs": [],
   "source": [
    "python_words = {'慢走': ' 一小时4公里消耗 255 卡',\n",
    "               '慢跑': '一小时9公里消耗655卡',\n",
    "               '羽毛球':'一小时消耗 440 卡',}\n",
    "\n",
    "\n",
    "def show_words(python_words):\n",
    "    # A simple function to show the words in the dictionary.\n",
    "    display_message = \"\"\n",
    "    for word in python_words.keys():\n",
    "        display_message += word + '  '\n",
    "    print(display_message)\n",
    "\n",
    "\n",
    "# Print each meaning, one at a time, and ask the user\n",
    "#  what sport they think it is.\n",
    "for meaning in python_words.values():\n",
    "    print(\"\\n%s\" % meaning)\n",
    "\n",
    "    # Assume the guess is not correct; keep guessing until correct.\n",
    "    correct = False\n",
    "    while not correct:\n",
    "\n",
    "        print(\"\\nWhat sport do you think this is?\")\n",
    "        show_words(python_words)\n",
    "        guessed_word = input(\"- \")\n",
    "\n",
    "        # The guess is correct if the guessed word's meaning matches the current meaning.\n",
    "        if python_words[guessed_word] == meaning:\n",
    "            print(\"You got it!\")\n",
    "            correct = True\n",
    "        else:\n",
    "            print(\"Sorry, that's just not the right sport.\")"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "### 江西最高山\n",
    "\n",
    "[江西最高的十座山]{http://jx.ifeng.com/a/20160628/4693979_0.shtml}\n",
    "\n",
    "请模仿上例，创建包含山名和海拔的dict，并按如下形式循环输出：  \n",
    "“黄岗山海拔2157.8米”"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
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   "outputs": [],
   "source": [
    "mountain_altitude = {'黄冈山':'2157米',\n",
    "                     '独竖尖':'2128米',\n",
    "                     '南风面':'2120米',\n",
    "                     '齐云山':'2061米',\n",
    "                     '白鹤峰':'1918米',\n",
    "                     '五虎岗':'1891米',\n",
    "                     '过风坳':'1887米',\n",
    "                     '玉京峰':'1819米',\n",
    "                     '九岭头':'1794米',\n",
    "                     '军峰山':'1760米',\n",
    "}\n",
    "for mountain in sorted(mountain_altitude.keys()):\n",
    "    print(\"%s海拔%s\"%(mountain.title(),mountain_altitude[mountain]))"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "### 为室友打一波广告\n",
    "请参照课件3-dict_set中的cell[15]“卖室友”吧。  \n",
    "第一层dict的key可自选，如身高、爱好、技能等等。\n",
    "并以以下形式循环输出：  \n",
    "我知道的XXX，TA:  \n",
    "身高：160  \n",
    "爱好：吸猫  \n",
    "技能：python  \n",
    "\n",
    "\n",
    "\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
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   "outputs": [],
   "source": [
    "roommates = {'张辰馨':{'身高': '188', '爱好': '睡觉', '技能':'从早睡到晚'},\n",
    "        '文华虎':{'身高': '170', '爱好': '英语', '技能':'背单词'},\n",
    "        '姚迈':{'身高': '170', '爱好': '提莫盖伦火男', '技能':'卡，开始卡，中间卡，结束也卡'},\n",
    "        }\n",
    "for name, information in roommates.items():\n",
    "    print(\"\\n我知道的,\" +name)\n",
    "    print(\"身高:\" + information['身高'])\n",
    "    print(\"爱好: \" + information['爱好'])\n",
    "    print(\"技能: \" + information['技能'])"
   ]
  }
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